FABRICATOR 281
Manual No. 0-4880B
-
ADVANCED TROUBLESHOOTING
7.06 Output Voltage Test
A. Set COARSE VOLTAGE SELECTOR SWITCH to position "L"
B. Set FINE VOLTAGE SELECTOR SWITCH to position "1"
C. Connect voltmeter probes to + & - WELDING TERMINALS
D. Depress Gun Switch and observe voltage
E. Repeat voltage measurements in each of the 24 combinations of the OUTPUT VOLTAGE CONTROL SWITCHES.
The voltages should measure approx as outlined below.
EACH SUCCESSIVE READING MUST BE INCREASING IN VALUE
COARSE VOLTAGE SELECTOR
SWITCH SETTING
FINE VOLTAGE SELECTOR
SWITCH SETTING
VOLTAGE
1
1
15.3
1
2
15.9
1
3
16.2
1
4
16.9
2
1
17.4
2
2
18.1
2
3
18.5
2
4
19.3
3
1
20.4
3
2
21.4
3
3
22.1
3
4
23.1
4
1
24.1
4
2
25.3
4
3
26.2
H
1
29.9
H
2
32.1
H
3
33.5
H
4
35.9
H
5
38.2
H
6
41.5
H
7
43.5
H
8
47.4
F. Set COARSE VOLTAGE SELECTOR SWITCH to position "L"
G. Set FINE VOLTAGE SELECTOR SWITCH to position "1"
This completes the Output Voltage Tests. If the above are all correct then proceed to paragraph 'D'. If the above
does not function as noted then note the symptom and proceed to Section 7.13 Output Voltage Test.
Summary of Contents for 281 FABRICATOR
Page 54: ...fabricator 281 OPERATION 4 18 Manual No 0 4880B NOTES ...
Page 80: ...Fabricator 281 CIRCUIT OPERATION 8 Manual No 0 4880B ...
Page 98: ...fabricator 281 APPENDIX A Manual No 0 4880B APPENDIX 4 SPOT TIMER CIRCUIT DIAGRAM Art A 07521 ...
Page 104: ...fabricator 281 APPENDIX A 12 Manual No 0 4880B ...
Page 105: ......
